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From: gvg@lvld.hp.com (Greg Goebel)
Subject: 3D-Talk: stereogram
Date: 1995/07/07
Message-ID: <3tkf8r$4bi@miso.wwa.com>#1/1
X-Deja-AN: 105813008
approved: boba@wwa.com
sender: boba@miso.wwa.com
organization: Hewlett-Packard Co., Loveland, CO
newsgroups: rec.arts.ascii



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          .                   .                   .                   .
      . .                 . .                 . .                 . .
    . ..           .    . ..           .    . ..           .    . ..
       +   .   .          +    .   .         +     .   .        +      .   .
      .                   .                   .                   .
          Exchange         Exchange         Exchange         Exchange
            .                   .                   .                   .
  .  .                .  .                .  .                .  .
      .      +            .     +             .    +              .   +     
  ..       .     .    ..       .     .    ..       .     .    ..       .     .
     .                   .                   .                   .           
     +.        .        + .        .       +  .        .      +   .        .
            . .                 . .                 . .                 . .
  . .      .          . .      .          . .      .          . .      .  
   . .      .          . .      .          . .      .          . .      .
              /\          /\  /\           /\ /\            /\/\   
             /  \  /\/\  /   /  \    /\/\ /  /  \      /\/\/ /  \     
            /    \/   /\/   /    \  /  /\/  /    \    / /\/ /    \
           /      \  /     /      \   /    /      \    /   /      \
          /        \/\    /        \/\    /        \/\    /        \/\   
         /  hp-mxd    \     hp-mxd    \     hp-mxd    \     hp-mxd    \


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  Comments:  This is the first ASCII stereogram I've put together (for my
  HP email newsletter).  If you haven't tried this stuff before, some hints:

   % You have multiple representation of objects in parallel columns -- 4 
     in this example.

   % An object nearer to you has *closer* spacing (fewer spaces); an object
     further away has *wider* spacing (more spaces).

   % With four columns, in stereo you will appear to have *five* columns.
     You can see spacing errors by inspecting the center three columns (the
     two outlying columns don't count -- they're hard to focus on).

   % Beware (as I got trapped initially) to make sure you have a common 
     number of representations of *all* objects.  Originally I had three
     representations of a few objects, but this led to a visual conflict
     with objects that had four representations -- a very subtle one since
     the spacing was correct.  So I went back and made sure I had four
     representations of every last element in the picture.

-
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|            Wile E. Coyote at Acme Electronics Corporation                  |
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|      Reality is what refuses to go away when I stop believing in it.       |
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| GV "Kai" Goebel                         NET:     gvg@hpislsup              |
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